喜 xǐ = 壴 (zhù, a standing drum) over 口 (kǒu, mouth). The top element 壴 is the old pictograph of a drum mounted on a stand, the same component at the heart of 鼓 gǔ (drum). Below it sits 口, the mouth. The combined image is a festive drum sounding while a mouth opens, the music of celebration met by the smile and laughter that answer it. From that scene of joyful noise the character settled into the plain meaning of happiness and gladness.

Three senses branch from the drumbeat over the smiling mouth:

1. Joy, happiness, gladness. The core feeling: 喜欢 xǐhuan (to like), 欢喜 huānxǐ (joyful), 喜悦 xǐyuè (delight), 喜爱 xǐ'ài (to be fond of).
2. To like, to be fond of, to suit. The feeling turned toward an object: 喜爱 xǐ'ài (to love, to favor), 喜好 xǐhào (a liking, a preference), and the bound sense of a plant that 喜 (favors) sun or shade.
3. Happy events, above all the wedding. A standing word for an auspicious occasion: 喜事 xǐshì (a happy occasion, a wedding), 喜帖 xǐtiě (a wedding invitation), 报喜 bàoxǐ (to bring glad news). Doubled as 囍, it is the double-happiness emblem pasted up at every Chinese wedding.

The thread running through all three is the bright, outward warmth of the original picture. Whether it is the feeling inside, the fondness reaching toward a thing, or the celebration that gathers a family, 喜 is the drum and the smile sounding together.

In daily speech 喜事 xǐshì means a happy occasion, and by default it means a wedding. To say 你家有喜事 "your family has a happy event" is, without further context, to congratulate someone on a marriage or a coming birth. The same 喜 sits inside 喜酒 xǐjiǔ (the wedding banquet, literally the joy-wine), 喜糖 xǐtáng (the sweets handed out at a wedding), and 喜帖 xǐtiě (the wedding invitation).

The most familiar form of all is the doubled character 囍, the double-happiness emblem. Two 喜 set side by side, it is pasted in red and gold on doors, windows, and gifts at every wedding, and it appears on textiles, porcelain, and paper-cuts as the standing wish for marital joy. The doubling carries its own meaning: not one happiness but a shared one, the two families and the two partners joined. You will also meet the phrase 双喜临门 shuāngxǐ lín mén, "double happiness arrives at the door," said when two good things land at once.

Hear the drum first. The top of 喜 is 壴, a drum on its stand, and below it is 口, an open mouth. Set them together and you have the sound of celebration and the smile that answers it: the festive drum sounding while a mouth laughs. That is the whole character, joy made loud and visible.

From that one scene every sense follows. Turn the joy inward and it is delight (喜悦, 欢喜). Turn it toward a thing and it is liking (喜欢, 喜爱). Gather a family around the drum and it is a happy occasion, the wedding above all (喜事), and double the smile into 囍 and you have the red-and-gold emblem pasted on the wedding door. Whenever you meet 喜, picture the drum and the smiling mouth, and ask which way the joy is pointing.